Day 779

Didn't wake up till 10.15am. Finished the distance map computerisation; wrote a traversing prog that enables a virtual 'walk' round Mugsborough (9½ miles circuit on my map). Learnt about random-access files in the process.

Discovered that even in Windows 3.0 Paintbrush makes no complaint about an A4 picture size. Filled up the third disc of scannings.